Sheet-metal tank



L. w. WYMAN.

SHEET METAL TANK.

APPLICATION FILED SEPT. 12, i918.

Patented Oct. 28, 1919.

IN VEN TOR. dmencdam WITNESS:

A TTORNE YS.

UNITED STATES PATENT OFFICE.

LAURENCE WEST WYlVLAN, OAKLAND, CALIFORNIA, ASSIGNOR TO CALIFORNIACORRUGATED C ULVERT COMPANY, OF OAKLAND, CALIFORNIA, A CORPORATION OFCALIFORNIA.

To all whom it may concern:

Be it known that I, LAURENCE Wnsr WYMAN, a citizen of the United States,residing at Oakland, in the county of "Alameda and State of California,have invented certain new and useful Improvements in Sheet- Metal Tanks,of which the following is a specification.

My invention relates to the class of sheetmetal tanks, troughs, flumes,pipes and other sheet-metal structures which require an endclosuremember.

My invention consists in the novel end connection which I shallhereinafter fully describe.

Though my invention is applicable to any sheet-metal structure of theclass mentioned, it is especially adapted for stocktanks or troughs,either for water or food, and in this connection it is foundparticularly useful for hog-troughs, in that it is sanitary, durable,and economical in manufacture.

Referring to the accompanying drawings:

Figure l is a cross section of my improved trough.

Fig. 2 is a longitudinal section, broken, on

the line 2 2 of Fig. 1.

Fig. 3 is a top plan view, broken. Figs. 4 and 5 are detail viewsshowing a slight modification of the top-lugs of thje end members.

1 is the sheet-metal body of the trough, bent in transverse section toany desired shape.

The end edges of the body 1 are beaded at 2, the bead being of anysuitable shape. It may be circular or it may be arcuate, the latterbeing here shown.

8 are the end-closure-members of the trough. These are of metal, inpractice castmetal, and each has on its inner face, near its border, aflange 4:, the outer face of which is formed into a seat 5 complementingthe bead 2 of the end edges .of the body 1.

The end-members 3 are formed below with feet 6, and at their tops theyhave inwardly projecting perforated lugs 7.

The end-members 3 are fitted to and over lap the end edges of the body1, and their flanges 4 enter the body, the seats 5 of said flangesfitting and embracing the beads 2 of the body, as seen clearly in Fig.2.

Specification of Letters Patent.

Patented Oct. 28, 1919.

. Application filed September 12, 1918. Serial No. 253,714,

If desired, a suitable packing, such as a coating of heavy paint, orpaste, or mineral rubber, may be placed in the joint between the seat 5and the bead 2, but to avoid confusion-in the drawing, I have not deemedit necessary to show this.

When the end-members 3 are in place, the clamping-members which are hereshown as rods 8 are fitted to the beads 2 by laying them in the concaveexterior surfaces of said beads, the ends of the rods passing throughthe perforated lugs 7 of the endmembers; and said end receive the nuts9.

It will now be seen that by tightening up the nuts 9, the rods 8 willclamp the beads 2 against the seats 5 of the flanges 4 of theend-members 3, and thus make a secure and tight joint between thecast-iron end and the body of the trough.

10 are reinforcing rods in the side edges of the trough body. These mayor may not be used.

The shapes of the interfitting parts and the materials used may beVaried without departing from the invention.

By the connection which I have herein described, the cast-iron ends aresatisfactorily fastened to the sheet-metal body without the use ofrivets or solder, and they may be removed conveniently if required tomore perfectly clean the trough.

As shown in Figs. 4 and 5, the perforated top-lugs 7 of the end membersmay assume the shape of separate cross plates 11.

I claim l. Sheet-metal tanks comprising a bodymember, the end edge ofwhich is beaded; an end-closure-member having a portion complementingand interengagingly fitting the bead of the body-member; and aclampino-member for tightening the complementary parts of thebody-member and the endclosure-member together.

2. Sheet-metal tanks comprising a bodymember the end edge of which isbeaded; an end-closure-member having a flange on its inner side with aface complementing and interengagingly fitting the bead of thebody-member; and a clamping-member for tightening the bead of thebody-member against the face of the end-member flange.

3. Sheet-metal tanks comprising a bodymember the end edge of which isprovided with a bead; an end-closure-member having on its inner side aflange adapted to enter the end of the bodymember, the face of saidflange corresponding to and interengagingly fitting the exterior of thebead of said bodymember; and a clamping-member fitted to the bead fortightening it in the flange.

i. Sheet-metal tanks comprising a bodymember the end edge of which isprovided With a bead; an end-closure-member having a portioncomplementing and interengagingly fitting the head of the body-member,and having also perforated members at its top; a clamping-member fortightening the Copies of this patent may be obtained for complementaryparts of the b0dy-1ne1nber and the end-closure-member together, saidclamping-member passing" through the perforated top members of theend-closuremember; and nuts on the ends of the clamping-member.

In testimony whereof I have signed my name to this specification in thepresence of tWo subscribing Witnesses.

LAURENCE WEST WYMAN.

Witnesses:

SAMUEL F. RHOADs, S. A. FORD.

five cents each, by addressing the Commissioner of Patents, Washington,I). G.

